Polishing device.



J. O. BLEVNEY. POLISHING DEVICE. APPLICATION FILED SEPT. 19,1912.

Patented Apr. 21, 1914.

- UNITED sTATns PATENT OFFICE.

JOHN c. BLEVNEY, or nwAnK, NEW JERSEY, nssieNon r0 THE coax INSERT COMPANY, or BOSTON, MASSACHUSETTS, A CORPORATION pr MAINE.

POLISHING DEVICE.

Specification of Letters Patent.

Application filed September 19, 1912. Serial No. 721,315.

To all whom it may concern v 3 Be itknowfi that I, JOHN C. BLEVNEY, a citizen of the United States, residing in Newark, countyof Essex, and State of New Jersey, have invented an Improvement in Polishing Devices, of which the following description, in connect-ionrwith the accompanying drawings, is a specification, like letters on the drawings representing like parts.

. This invention relates to a.polishing device and is herein shownias embodied in a polishing wheel, and has for its object to provide an inexpensive and highly efiicient wheel of the character'described, which is capable of being used for polishing articles of metal, leather or other material. To this end the wheel, which may be ofwood, metal 1 or other firm or rigid material, is provided on its. periphery 'wlth projecting yielding.

members or devices, which are spaced apart.

to provide the periphery of the wheel with a series of high and low points, the high points being provided with a suit-able polishing or abrading material such as emery, rouge, etc., with which the polishing is effected, and the circumference of the wheel forming the low pointswhich afford ample clearance between the article being polished and the circumference of the wheel, to alhe the fine particles of metal or other material detached in the act of polishing, to be removed from the article or work andfrom the high points of thewheels, whereby the polishing parts of the wheel, to wit, the high points th.ereof,are maintained in their most effective working condition, with the result that a greater amount ofwork may be performed at a minimum expense. The high points of the polishing wheel may be made.

of leather or other :fibrous material, but I prefer to employ pieces of corkin its natembodying the invention, and Fig; 4, a detail on an enlarged scale to be referred to.

Referrlng to-the drawing, a represents a wheel of any ordinary construction and of a size suitable for the particular polishing yielding'devices or members 0, which project beyond the rim to form a plurality of high points with relation to the circumference thereof. The projecting devices a are spaced apart so as to form spaces .or clearance openings 03 into which the fine particles of material detached from-the article" being polished may passand be thereby removed from contact with the work.

suitable yielding material, such as leather,

felt, etc., but it is preferred to employ cork 7.

in its natural state, which may be circular in form as shown in Figs. 1, 2 and 4, and insertedunder compression in suitable sockets oropenings '6 in the rim of the wheel,

or saidcork devices may be made in the form of strips whichare arranged-in suitable slots or elongated openings in the rim of the wheel, as shown in Fig. 3. The

abrading or polishing material may be of any suitablev or desired material, such for 35 instance as emery, corundum, rouge, etc., and is represented by the stippling 10. .The

abrading or polishing material may be af-h fixed to the cork or other-yielding working members 6 by glue or other adhesive material, andrin practice, the adhesion of the abrading material may be effected by mixing the abrading or polishing material with glue andthen rolling the wheel inthis mixture, so that the cork or other yielding members are covered withthe mixture. By this method, the circumference of the run The projecting devices '0 may be of any ural state, as the latternot only possesses the property of yielding, but is more or less porous'and aflords an excellent carrier for is also covered with a thin layer of the mixture, which; remains inactive, as it isv below the active surfaces of the yielding members 109 the finely divided polishing material, which is thus retained on the wheel and enables the latter to ,do a maximum amount of work with the greatest efiiciency.

Figure 1 1s a vertical circumferential sec- 1 tion of one forln of polishing wheel embodying this invention, the section being takenon the line 1'-1, Fig. 2. Fig. 2, a' plan view of. the Wheel shown in Fig. 1-.- Fig. 3, a plan new of .amodified form of polishing wheel and does not contact with the work being polished. The cork members are more or less porous and permit of the fine abrading material being pressed therein and thereby firmly attached thereto, with theresult that a more lasting-and eflicient polishing surface is obtained 7 Instead of the particular method of applying the abrading material tothe working members of tlYefpol ishing wheel, any other H I desired method may be employed, as for instance the mixture of abrading material and glue or other adhesive may be applied to the cork or other working members with a brush.

In operation with the polishing wheel herein shown, the latter is mounted on a suitable shaft or arbor and is designed tobe rotated at a substantially high speed, and the outer surfaces of the projecting working members are engaged with the Work to be polished, which may be inetal, leather, wood or other inaterial. It will be observed'that the projecting devices or working members which carry the abrading material, yield under pressure and afford a substantial surface contact forengagement with the work which is withdrawn substantially 'in an instant, and is followed by ,a clearance space into which passes the fine particles of the material which is removed by the abrading material, thereby avoiding contact of the fine particles with the work and the succeeding projecting memben' As a result, the polishing wheel is maintained in its most effective condition and its life materially prolonged, whereby a'maximum amount of work can be performed at a minimum expense. The cork members also serve to increase the life and eficiency of the wheel and enable a maximum amount of work to 7 be polished at the least possible expense.

Claims:

.1. In adevice of the character described, in combination, a wheel having a rim of rigid material, a plurality of yielding members projecting from said rim and arranged transversely thereof in substantially close proximity to one another and separated by spaces, which extend transversely of the rim between adjacent yielding members, and i abrading material afiixed to said yielding members, substantially as described.

2. In a device of the character described, in combination, a 'wheel having a rim of rigid material provided with a plurality of sockets of openings in it which are arranged transversely of the rim and spaced apart,

In testimony whereof, I have signed my name to this specification in the presence of two subscriblng w1tnesses. I

JOHN C. BLEVNEY.

Witnesses:

GEORGE D. RICHARDS, FREDK; N. W. FRAENTZEL. 

